Figure 2.

Mean pre- and post-treatment Visual Analogue Scale scores in the Autologous Conditioned Serum (ACS), ACS+Cortisone (ACS+C), and ACS+Cortisone+recombinant IL-1 receptor antagonist protein (ACS+C+rIRAP) groups as a function of the Kellgren/Lawrence (K/L) hip grade. OA, osteoarthritis; Mild=K/L hip grade 2-3; Severe=K/L hip grade 4; N=number of hips; N=number of hips; VAS=Visual Analogue Scale (0=no pain, 10=most severe pain). Error bars indicate standard errors of mean (SE). P values were calculated by one-way within-subjects analyses of variance (ANOVAs) with the effect size ɳ² (≥0.14=large, ≥0.06=moderate, ≥0.01=small).